JPS5815210A - Pressure sensitive resistance element - Google Patents
Pressure sensitive resistance elementInfo
- Publication number
- JPS5815210A JPS5815210A JP11339481A JP11339481A JPS5815210A JP S5815210 A JPS5815210 A JP S5815210A JP 11339481 A JP11339481 A JP 11339481A JP 11339481 A JP11339481 A JP 11339481A JP S5815210 A JPS5815210 A JP S5815210A
- Authority
- JP
- Japan
- Prior art keywords
- granules
- pressure
- rubber
- conductive
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- Switches Operated By Changes In Physical Conditions (AREA)
- Conductive Materials (AREA)
- Adjustable Resistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は新しい構成の感圧抵抗素子に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressure-sensitive resistance element with a new configuration.
従来感圧抵抗素子用の導電性ゴム状弾性体としては、絶
縁性ゴム弾性体中に金属粉粒体やカーボンブラックを混
合分散させたもの、あるいはスポンジ吠体中にそれら導
電体粒子を分散させたものなどが種々開発されている。Conventionally, conductive rubber-like elastic bodies for pressure-sensitive resistance elements have been prepared by mixing and dispersing metal powder or carbon black in an insulating rubber elastic body, or by dispersing conductive particles in a sponge body. Various products have been developed.
これらは印加圧力によってゴム伏仰性体中で、粒子間の
接触の機会が増加および/または当接している電極との
冥質接触面積が増加することによって、対電極間の抵抗
値が小さくなる機構のものである。この印加圧力によっ
て導電性ゴム状弾性体が圧縮蛮形するが、それによって
該絶縁性ゴム弾性体マ)9ツクスと上記導電体粒子との
間に剥離のせん断が働き、マトリックスと粒子との間に
接着剤やカップリング劃を使用して接着力を強固にして
あっても、くり返しの印加圧力あるいは大きい歪変形に
より、マトリックスと導電体粒子とは分離し、初期の抵
抗〜圧力の関係維持が困難で信頼性が低い欠点がある。The applied pressure increases the chance of contact between particles in the supine rubber body and/or increases the area of contact with the electrode, which reduces the resistance between the counter electrodes. It belongs to the organization. This applied pressure compresses and deforms the conductive rubber-like elastic body, which causes peeling shear between the insulating rubber-like elastic body matrix and the conductive particles, and creates a gap between the matrix and the particles. Even if the adhesive force is strengthened using adhesive or coupling, repeated applied pressure or large strain deformation will cause the matrix and conductive particles to separate, making it impossible to maintain the initial resistance-pressure relationship. It has the disadvantage of being difficult and unreliable.
この圧縮賓形量を小さくしてそれらの欠点を改良する場
合には、圧縮方向の厚みがうす物に制酸されたり、圧力
と抵抗値関係の微mWJが極めて困難とされるなどの不
利がある。In order to improve these shortcomings by reducing the amount of compression, there are disadvantages such as antacids due to thinner materials in the compression direction and the extremely difficult measurement of minute mWJ in the relationship between pressure and resistance. be.
例えば、米国特許第4,199,637号、同IJ4゜
203、088号、同第4,210,895号、同$4
゜209.482号等の明細書には、印加圧力により過
接電極面積内で貫通する針状体の数が増加する構造の感
圧抵抗素子が開示されているが、これらは線状、針状体
の座届、屈曲等の永久費形によりその信頼性を失う欠点
を有している。したがってこれらの導電性ゴム状弾性体
を使用した感圧抵抗素子はきわめて限定された仕様範囲
で使用される不利を持っている。For example, U.S. Patent No. 4,199,637, IJ4゜203,088, U.S. Pat.
Specifications such as No. 209.482 disclose a pressure-sensitive resistance element having a structure in which the number of needle-shaped bodies penetrating within the area of the overcontact electrode increases depending on the applied pressure. It has the disadvantage of losing its reliability due to permanent damage such as bending and bending of the body. Therefore, pressure-sensitive resistance elements using these conductive rubber-like elastic bodies have the disadvantage of being used within extremely limited specification ranges.
また特公昭155−26565号公報には、その図面に
示されているように、感圧抵抗構造体が押圧によってそ
の表層部に導電性粒子を混合した弾性体A群の分布密度
を高め、一方その構造体内部に導電性粒子を混合しない
弾性体3群の分布密度を高めるよう(ユ構敗した感圧抵
抗体が示されている。しカルこれは弾性体A群とBtn
を上記機能が発揮されるようにM合分散させたものであ
るため、そのIIs戚が検線であり、したがって工程管
理がやっかいでコスト高なものになるという不利がある
ほか、品質のバラツキ、感圧抵抗の不安定さが認められ
る。Furthermore, as shown in the drawings of Japanese Patent Publication No. 155-26565, a pressure-sensitive resistance structure increases the distribution density of elastic body A group mixed with conductive particles on its surface layer by pressing, while In order to increase the distribution density of the elastic body group 3 without mixing conductive particles inside the structure (the failed pressure-sensitive resistor is shown), this is done by increasing the distribution density of the elastic body group A and Btn.
Since it is a combination of M and dispersed so that the above functions are exhibited, its IIs relative is a inspection line, which has the disadvantage that process control is troublesome and costs are high, as well as variations in quality and Instability of the pressure-sensitive resistor is observed.
さらに実公昭49−82692号公報には、圧縮の程度
によって電気抵抗値が変化する導電性スポンジが開示さ
れているが、このものは例えばそのスポンジ構造か独立
気泡スポンジの場合は、セルの膨出ないゃ借出費形によ
る内壁の仲働、屈曲がくり返されるし、またホームラバ
ーあるいは連続気泡スポンジの場合は、セル内壁の屈曲
が鋭角状に住じるので、いずれの場合にもセル内壁の疲
労が早期に発止し易い不利がある。Furthermore, Japanese Utility Model Publication No. 49-82692 discloses a conductive sponge whose electrical resistance value changes depending on the degree of compression. Otherwise, the inner walls of the cells would be bent and bent repeatedly due to the borrowed material, and in the case of home rubber or open-cell sponge, the bends of the inner walls of the cells would be at acute angles. There is a disadvantage that fatigue tends to occur early.
本発明は、かかる不利、欠点を解決した感圧抵抗素子を
提供しようとするもので、これは電極間に、少なくとも
表面層が導電性であるゴム状弾性体よりなる粒状体を集
塊状態で配設してなり、抑圧時には粒状体の押圧による
借出および/または膨出変形により、電極と粒状体、お
よび粒状体相互の接触面積が増加し、抑圧を解除すると
該接触面積が減少するように構成したことを特徴とする
感圧抵抗素子に関するものである。The present invention aims to provide a pressure-sensitive resistance element which solves these disadvantages and disadvantages, and which comprises agglomerated granules made of a rubber-like elastic material whose surface layer is electrically conductive between electrodes. When suppressed, the contact area between the electrode and the granules and between the granules increases due to borrowing and/or bulging deformation due to the pressure of the granules, and when the suppression is released, the contact area decreases. The present invention relates to a pressure-sensitive resistance element characterized in that it is configured as follows.
この本発明によれば導電性ゴム弾性体の集塊を構成する
粒状体が抑圧に応じ借出ないし膨出し、これによって粒
状体相互の接触面積が増加して電気抵抗値が変化する機
構のものであるから、その構成は従来のような棲雑な構
成のものではなく、しかも疲労がきわめて生じ難く、信
頼性は抜群に高いものである。According to the present invention, the granules constituting the agglomerate of the conductive rubber elastic body bulge out or swell in response to compression, thereby increasing the contact area between the granules and changing the electrical resistance value. Therefore, its structure is not as complicated as the conventional one, and it is extremely hard to cause fatigue and has extremely high reliability.
本発明に使用される導電性であるゴム状弾性体の粒状体
は、絶縁性のゴム弾性体マトリックス中に金属粉粒体や
カーボンブラック等の導電性部材を混合分散させたもの
を粒状としたもの、あるいはあらかじめ粒状体とされた
絶縁性ゴム弾性体の表面に導電性ゴムの被覆層を形成し
たものなどいずれでもよく、あるいはまた絶縁性ゴム弾
性体粒子の表面に導電性ゴム弾性体細粒が密に層状に接
合されているものでもよいが、この導電性ゴム状弾性体
としては比抵抗が10−’ ohm−(2)〜10’0
hnI−国の範囲内のものであることが望ましい。The conductive rubber-like elastic granules used in the present invention are made by mixing and dispersing conductive materials such as metal powder and carbon black in an insulating rubber-elastic matrix. It may be a material in which a conductive rubber coating layer is formed on the surface of an insulating rubber elastic material that has been made into granules in advance, or a conductive rubber elastic material fine particle is formed on the surface of an insulating rubber elastic material particle. The electrically conductive rubber-like elastic body may have a specific resistance of 10-' ohm-(2) to 10'0
Preferably within the hnI-country.
導電性ゴム状弾性体は粒状体の形で使用するのであるが
、これは加硫によって導電性ゴム状−性体を構造する際
に所定形状の粒状体に成形加硫することにより得ること
ができるほか、シート状もしくは棒杖、塊状、ひも状等
の導電性ゴム状弾性体を、適当な大きさの粒状体に、粉
砕、切断あるいは裁断して得たものでよい。したがって
、これら粒状体の断面形状あるいは投影形状などには特
に制限がなく、粉体工学で示されるあらゆる形状のほか
、リング状、パイプ状、中空体、多孔質体等いずれも含
まれる。The conductive rubber-like elastic body is used in the form of granules, which can be obtained by molding and vulcanizing the conductive rubber-like body into granules of a predetermined shape when vulcanizing the body. Alternatively, it may be obtained by crushing, cutting, or cutting a conductive rubber-like elastic body in the form of a sheet, stick, lump, string, etc. into particles of an appropriate size. Therefore, the cross-sectional shape or projected shape of these granules is not particularly limited, and includes all shapes shown in powder engineering, as well as ring shapes, pipe shapes, hollow bodies, porous bodies, and the like.
粒状体がこれらのいずれのものであっても、その最大外
径が10μm〜10m(好ましくは50声!21〜!S
−)であり、断面の実面積が75声−〜100−(好ま
しくは200μm1〜75−)であるものが望ましい。No matter which of these particles the granules are, their maximum outer diameter is 10 μm to 10 m (preferably 50 tones!21 to!S
-), and the actual area of the cross section is preferably 75 to 100 mm (preferably 200 μm to 75 mm).
これがあまりに小さいものであると、前記した機能を備
えた感圧抵抗素子を構成することが困難である。すなわ
ち、粒状体間の摩擦力と粒状体側々の弾性復元力のバラ
ンスが悪くなり易く集塊状態での弾性復元力が不足し具
合が悪く、印加圧力と抵抗値関係の微調節を行い離いも
のとなる。−万この粒状体が大きすぎると、この導電性
ゴム状弾性体の体積に対する表面積の比が小さくなるこ
とによって、抑圧時の圧縮による膨出表面の固有抵抗が
大きくなる傾向があり、抑圧による抵抗変化量があまり
変らないものとなるほか、圧縮される際、粒状体表面の
借出仲働による摩擦力が大きなものなり1表面でのタラ
ツキングが生じ易くなるという不利がある。If this is too small, it will be difficult to construct a pressure-sensitive resistance element with the above-mentioned functions. In other words, the balance between the frictional force between the granules and the elastic restoring force on the sides of the granules tends to be poor, and the elastic restoring force in the agglomerated state is insufficient, causing a poor condition. Become something. - If the granules are too large, the ratio of the surface area to the volume of the conductive rubber-like elastic body becomes small, which tends to increase the specific resistance of the bulging surface due to compression during compression, and the resistance due to compression In addition to the amount of change not changing much, there is a disadvantage that when compressed, the frictional force due to the borrowing action of the surface of the granular material becomes large, making it easy to cause roughening on one surface.
なお、導電性ゴム状弾性体の粒状体は前記した平均直径
の範囲のものであれば、大小まざっていても原則的には
差支えないが、望ましくは直径のそろったものあるいは
粒体分布巾をできるだけ小さい状態で、さらには形状を
そろえて使用することがよい。Incidentally, as long as the granules of the conductive rubber-like elastic material have an average diameter within the above-mentioned range, there is no problem in principle even if the sizes are mixed, but it is preferable that the granules have a uniform diameter or have a particle distribution width. It is best to use them as small as possible and even in the same shape.
本発明は上記した粒状体が集塊状態で電極間に配設され
るものであるが、この集塊状態とは粒状体が堆積構造を
形成し、粒状体が1個1個分離せず、密充填状態、整配
列の堆積状態あるいは縁に充填堆積している状態であっ
て、各粒状体のもつ、例えば中堅構造、多孔質構造を除
く!2H率は5〜80%、粒状体の実容積によっても興
なるが好ましくは10〜75%、より好ましくは20〜
70%である。5%より小さいと抵抗値費化量を太き(
得難く、80%より大きいと粒状体表面の伸張による抵
抗値増加あるいは粒状体間の摩擦劣化が生じ易く、粒状
体間の粘着が発注したりし易いので、信頼性の維持が困
難なものとなる。In the present invention, the above-mentioned granules are arranged between the electrodes in an agglomerated state, but this agglomerated state means that the granules form a stacked structure, and the granules do not separate one by one. A state of close packing, a state of well-aligned deposition, or a state of filling and depositing at the edges, excluding the medium-sized structure and porous structure of each granule! The 2H rate is 5 to 80%, depending on the actual volume of the granules, but preferably 10 to 75%, more preferably 20 to 75%.
It is 70%. If it is less than 5%, increase the amount of resistance value cost (
If it exceeds 80%, it is likely that the resistance will increase due to elongation of the surface of the granules, or frictional deterioration between the granules will occur, and adhesion between the granules will easily occur, making it difficult to maintain reliability. Become.
本発明におけるかかる粒状体の集塊状態はその外観形状
が板状体、柱吠体、環状体、球面体で透影外観はその外
径表面が平滑面ないし粗面、凹凸面を呈する。In the present invention, the agglomerated state of the granules has an external appearance of a plate-like, cylindrical, annular, or spherical body, and the outer diameter surface of the granules has a smooth surface, a rough surface, or an uneven surface.
このような粒状体の集塊状態の外観形状は、印加圧方向
での厚み、高さは遥ばれた粒状体最大外径の平均が大き
いものを用いた場合にはOa倍〜S倍、小さい方のもの
を用いた場合には0.5倍〜100倍にて行うのがよく
、先の粒状体外径、空隙率の効果的な範囲と相まってさ
らに信頼性を高めるのに有効である。The external shape of such agglomerated granules has a thickness and height in the direction of applied pressure that are Oa to S times smaller when using granules with a larger average maximum outer diameter. If one is used, it is preferable to use a magnification of 0.5 to 100 times, which is effective in further increasing reliability in combination with the above-mentioned effective ranges for the outside diameter and porosity of the granules.
この集塊状態は通常電極間の配役に際し、動作していな
いときの電極への接触あるいは離間は限定しないが、抑
圧の方向に垂直な面の周囲はできるだけ、他の固い部材
に接触していない方がよい。This agglomeration state is usually applied between electrodes, and does not limit the contact or separation of the electrodes when not in operation, but the periphery of the plane perpendicular to the direction of suppression does not contact other solid members as much as possible. It's better.
押圧を解除したとき元の厚みに復帰し易い柔軟なゴム状
弾性体に接触している場合は、そのゴム状弾性体の弾発
挙動により上記復帰が助勢されるので具合よく、一体化
しているものはさらに具合がよい。If it is in contact with a flexible rubber-like elastic body that easily returns to its original thickness when the pressure is released, the above-mentioned return is assisted by the elastic behavior of the rubber-like elastic body, so that it is conveniently integrated. Things are even better.
粒状体の集塊状態は加硫した導電性ゴムの粒状体を平面
状で敷設し、つぎに加硫し得る未加硫導電性ゴムの粒状
体を重ねて敷設し必要により交互多重に積層堆積して、
加硫するその際空隙率を維持して型わ(に入れ熱圧して
加硫してもよい。あるいは上記粒状体は初めに全て加硫
し得る未加硫導電性ゴムであって堆積状態を維持して熱
風加硫、蒸気加硫も行ない得る。またあるいは加硫導電
性ゴム粒状体と加硫し得る。未加硫ゴム粒状体を適度な
割合で均一分散混合して堆積させたものな加硫させても
よい。さらには導電性および/または絶縁性の加硫およ
び/または未加硫ゴム粒状体を、底が通液性の容器状の
もの例えばふるいやざるの中に堆積させてNmで流体で
あり硬化後ゴム弾性体を呈し、導電性となるゴム液状原
料に浸積して、ろ過あるいは蒸留塔における充填層のバ
ブリング状態のない、液ぬれ状態で液状ゴム原料を硬化
させる方法によってもよい、液状ゴム原料はシリコ−y
ゴムにおいては室温硬化、加温硬化の二液型、二液型の
いずれでもよく、また溶剤を使用してもよい0粒状体が
平面に一層に敷設状態をなし集塊化してもよい。The agglomerated state of granules is achieved by laying granules of vulcanized conductive rubber in a flat shape, then laying granules of unvulcanized conductive rubber that can be vulcanized in layers, alternating and stacking them as necessary. do,
During vulcanization, the porosity may be maintained and the granules may be placed in a mold and vulcanized by hot pressure.Alternatively, the granules may be unvulcanized conductive rubber that can be completely vulcanized at the beginning, and the deposited state may be maintained. It is also possible to perform hot air vulcanization or steam vulcanization while maintaining the temperature. Alternatively, it can be vulcanized with vulcanized conductive rubber granules. Furthermore, conductive and/or insulating vulcanized and/or unvulcanized rubber particles may be deposited in a container with a liquid-permeable bottom, such as a sieve or colander. A method of curing the liquid rubber raw material in a wet state without filtration or bubbling of a packed bed in a distillation column by immersing it in a rubber liquid raw material that is fluid at Nm and exhibits a rubber elastic body and becomes conductive after curing. The liquid rubber raw material may be silico-y.
The rubber may be either a two-component type or a two-component type that cures at room temperature or at elevated temperature, and may be agglomerated by laying granules in one layer on a flat surface, which may use a solvent.
本発明の集塊状態にある粒状体(図面における集塊2)
に配設される電極は、可と5性、剛体、墓板上にエツチ
ング形成されたもの、あるいは従来公知のビン状、板状
、リボン状の接触子形拭のもの、針金状、可とう性、弾
力性金属薄板、箔を可よう性合成樹脂、合成ゴムシーシ
状、板状体に一体的にしたものあるいは蒸着、スパッタ
により形成されたものなどいずれでもよく、また必姿に
より貴金属メッキ処理してもよい。Granules in an agglomerated state according to the present invention (agglomerate 2 in the drawing)
The electrodes disposed on the electrodes may be flexible, rigid, etched on the grave plate, or conventionally known bottle-shaped, plate-shaped, ribbon-shaped contact wipers, wire-shaped, flexible electrodes, etc. It may be made of flexible, elastic metal thin sheets, foils made of flexible synthetic resin, synthetic rubber sheaths, integrated into plate-like bodies, or formed by vapor deposition or sputtering, and may be plated with precious metals if necessary. It's okay.
電極は■上記集塊状態を挾む、■集塊状態表面に並設す
る、■集塊状態を少なくとも1個が貫通する、などで配
置するが、1個の集塊は対し極数は2極ないし3輪以上
で配置される。The electrodes are arranged in such a way that they sandwich the above-mentioned agglomerated state, ■ are arranged in parallel on the surface of the agglomerated state, and ■ at least one electrode penetrates the agglomerated state, but the number of electrodes is 2 for one agglomerated state. Arranged with poles or three or more wheels.
本発明の具体的内容を図面に基づき説明すると、第1図
は電極8.8電間に導電性粒子1を集塊2として配設し
た構成からなる感圧抵抗素子の概略断面図を示したもの
で、同図(a)は非押圧状態をまた(b)は押圧状態を
それぞれ示す。この(b)図から判るように、抑圧によ
り電極と導電性粒子との接触面積が増加すると共に粒子
相互が接触し、この結果電極8,8電間の抵抗が非押圧
時ca図)に比べて大巾に小さくなる。To explain the specific content of the present invention based on the drawings, FIG. 1 shows a schematic cross-sectional view of a pressure-sensitive resistance element having a structure in which conductive particles 1 are arranged as agglomerates 2 between electrodes 8 and 8. In the figure, (a) shows a non-pressed state, and (b) shows a pressed state. As can be seen from this figure (b), the contact area between the electrode and the conductive particles increases due to the pressure, and the particles also come into contact with each other.As a result, the resistance between the electrodes 8 and 8 increases compared to the non-pressing state (ca diagram). It becomes extremely small.
82図は電極配置を別の構成としたもので、これは同図
(a)に示したように、片側の支持板4に導電性粒状体
からなる集塊2を固定する層すを設けである。この11
15は導電性、絶縁性のいずれでもよい。そして反対側
の支持板4′にn対電極8゜8’、8’が設けられてい
る。もちろんこの対電極は2極以上であればよい。同図
(b)は(a)図において導電性粒子が電極面に押圧さ
れた状態を示したものであり、これにより8.8’、8
’間が都連状態となる。Figure 82 shows a different configuration of the electrode arrangement, in which, as shown in Figure (a), a layer is provided on one side of the support plate 4 to fix the agglomerate 2 made of conductive particles. be. This 11
15 may be either conductive or insulating. On the opposite support plate 4', n counter electrodes 8° 8', 8' are provided. Of course, this counter electrode may have two or more poles. Figure (b) shows a state in which the conductive particles are pressed against the electrode surface in Figure (a), and as a result, 8.8', 8.8', 8.8',
'The interval becomes a state of Toren.
第3図、第4図および第5図は本発明の感圧抵抗素子を
応用した装置の二三の例を示したものであり、例えばカ
リキュレータ−1電話その他マイクロコンピュータ装置
のセンサースイッチ、電子機器用センサースイッチ、多
項目入力装置ないし抵抗−汗力巾を大きくして演奏効果
すなわちアフターコントロールを可能とした押釦状ない
しはけん譬下に使用した電子楽器あるいは電子玩具など
のキーボード装置として使用するもの、およびME用の
圧力センサー等に使用するものである。第3図中支持板
4紘可とう柱体でも剛体でもよい。3, 4, and 5 show a few examples of devices to which the pressure-sensitive resistance element of the present invention is applied, such as calculators, sensor switches for telephones and other microcomputer devices, and electronic equipment. sensor switch, multi-item input device or resistor - push button type or keyboard device for electronic musical instruments or electronic toys used in analogy that increases the perspiration width and enables performance effects, that is, after-control; It is also used in pressure sensors for ME. The support plate 4 in FIG. 3 may be either a flexible column or a rigid body.
第3図〜第5図中6は絶縁性ゴム弾性体であり、これは
多孔質体、発泡体でもよ(、また絶縁性ゴム弾性体粒か
らなる集塊状態の成形体でもよい。Reference numeral 6 in FIGS. 3 to 5 indicates an insulating rubber elastic body, which may be a porous body or a foam (or may be a molded body made of insulating rubber elastic particles in an agglomerated state).
本発明は上記図面に基づ(説明からも判るように、導電
性ゴム状粒状体の粒子1fA1個が電気・電子misの
信頼性を100%満さなければならないというものでは
なく粒状体の集塊状態において前記した機能(効果)が
果されればよい。粒体工学的、化学工学的領域において
確立された分野の取扱いで、電気・電子機器向けの品質
管理、加工装置、組立装置等の自動化等のきわめて容易
なものとなる。このことは粒状体の集塊において例えば
そのうち1個あるいは2個が不発明にいうm能を備えて
いない不良品としても、集塊状態物1個における機能、
さらに例えば第3図、第4図、第5図のような構造で集
塊の単位ごとの不良は皆無なものとなる、という意味で
実際上はきわめて大きな利点である。The present invention is based on the above-mentioned drawings (as can be seen from the description, one particle 1fA of conductive rubber-like granules does not have to satisfy 100% reliability of electric/electronic mis, but a collection of granules) It is sufficient that the above-mentioned functions (effects) can be achieved in the lump state.It is handled in the established field of particle engineering and chemical engineering, and is used for quality control, processing equipment, assembly equipment, etc. for electrical and electronic equipment. This makes automation extremely easy.This means that even if one or two of the particles in an agglomeration are defective and do not have the inventive function, the function of one agglomerate can be improved. ,
Furthermore, in the structure shown in FIGS. 3, 4, and 5, for example, there will be no defects in each agglomerate unit, which is a very great advantage in practice.
本発明による他の利点は抵抗−圧力の関係を容易に11
節することができるということであり、ゴム状弾性体粒
子が圧縮変形する際、粒子固体の体積と自白表面積の比
を大きくすることによって、粒子内部でのクリープを小
さくシ、粒子物相互の接触面積変化と対電極との接触面
積変化による相乗面積変化による抵抗−圧力の変化中を
大きくし、これにより調節が容具となり、信頼性が大き
くなるという利点が与えられる。Another advantage of the present invention is that it facilitates the resistance-pressure relationship 11
This means that when rubber-like elastic particles are compressively deformed, by increasing the ratio of the volume of the solid particles to the surface area, creep inside the particles can be minimized and contact between the particles can be minimized. This has the advantage of increasing the resistance-pressure change due to the synergistic area change due to the area change and the contact area change with the counter electrode, which provides greater control and reliability.
第1図は本発明に関する感圧抵抗菓子のもつとも基本的
な構成を示す概略断面図を示したものでその(a)図は
非押圧状態、(b)図は押圧状態を示す。
第2図は電極配置を別の構成とした感圧抵抗素子の概略
断面図を示したもので、その(龜)図は非押圧状態、(
b)図は抑圧状態を示す。
s3図(a) 、 (b)はセンチ−スイッチ、l14
1&(11) 、 (b)はキーボードスイッチ、18
5図(&)。
(b)は)JR圧力センサーとしてのそれぞれ使用態様
を示したものである。
l・・・導電性粒子
2・・・集塊
3 、 By 、 3′、 Bttp・・・電極4.4
′ ・・・支持板
6・・・集塊2を固定する層
6・・・絶縁性弾性体
特許出願人 信越ポリマー株式会社
、□Hl 図
第5図
(O)(b)FIG. 1 shows a schematic sectional view showing the most basic structure of the pressure-sensitive resistance confectionery according to the present invention, in which (a) shows the non-pressed state and (b) shows the pressed state. Figure 2 shows a schematic cross-sectional view of a pressure-sensitive resistance element with a different electrode arrangement.
b) The figure shows the suppressed state. s3 diagrams (a) and (b) are centi-switches, l14
1 & (11), (b) is the keyboard switch, 18
Figure 5 (&). (b) shows the usage mode as a JR pressure sensor. l... Conductive particle 2... Agglomerate 3, By, 3', Bttp... Electrode 4.4
'...Support plate 6...Layer 6 for fixing agglomerate 2...Insulating elastic body Patent applicant: Shin-Etsu Polymer Co., Ltd., □Hl Figure 5 (O) (b)
Claims (1)
弾性体よりなる粒状体を集塊状態で配設してなり、抑圧
時には粒状体の押圧による傍出および/または膨出変形
により、電極と粒状体、たことを特徴とする感圧抵抗素
子。1. Between the electrodes, granules made of a rubber-like elastic material whose surface layer is electrically conductive are disposed in an agglomerated state, and when the granules are pressed, the granules protrude and/or bulge out due to the pressure. A pressure-sensitive resistance element characterized by an electrode and a granular material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11339481A JPS5815210A (en) | 1981-07-20 | 1981-07-20 | Pressure sensitive resistance element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11339481A JPS5815210A (en) | 1981-07-20 | 1981-07-20 | Pressure sensitive resistance element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5815210A true JPS5815210A (en) | 1983-01-28 |
JPS6123643B2 JPS6123643B2 (en) | 1986-06-06 |
Family
ID=14611189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11339481A Granted JPS5815210A (en) | 1981-07-20 | 1981-07-20 | Pressure sensitive resistance element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5815210A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0581977A (en) * | 1991-09-24 | 1993-04-02 | Inaba Rubber Kk | Tactile sensor |
JP2008292410A (en) * | 2007-05-28 | 2008-12-04 | Hitachi Metals Ltd | Pressure-sensitive body, pressure-sensitive element and pressure-detecting method using the same |
JP2009075038A (en) * | 2007-09-25 | 2009-04-09 | Hitachi Metals Ltd | Pressure sensitive material |
JP2013165090A (en) * | 2012-02-09 | 2013-08-22 | Polytec Design:Kk | Pressure sensitive conductive elastomer molding and variable resistance device using the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6349448U (en) * | 1986-09-18 | 1988-04-04 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5256840U (en) * | 1975-10-23 | 1977-04-25 | ||
JPS52101434U (en) * | 1976-01-30 | 1977-08-01 | ||
JPS54105518A (en) * | 1978-02-07 | 1979-08-18 | Brother Ind Ltd | Key switch circuit for electronic instrument |
JPS554879U (en) * | 1979-05-02 | 1980-01-12 |
-
1981
- 1981-07-20 JP JP11339481A patent/JPS5815210A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5256840U (en) * | 1975-10-23 | 1977-04-25 | ||
JPS52101434U (en) * | 1976-01-30 | 1977-08-01 | ||
JPS54105518A (en) * | 1978-02-07 | 1979-08-18 | Brother Ind Ltd | Key switch circuit for electronic instrument |
JPS554879U (en) * | 1979-05-02 | 1980-01-12 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0581977A (en) * | 1991-09-24 | 1993-04-02 | Inaba Rubber Kk | Tactile sensor |
JP2008292410A (en) * | 2007-05-28 | 2008-12-04 | Hitachi Metals Ltd | Pressure-sensitive body, pressure-sensitive element and pressure-detecting method using the same |
JP2009075038A (en) * | 2007-09-25 | 2009-04-09 | Hitachi Metals Ltd | Pressure sensitive material |
JP2013165090A (en) * | 2012-02-09 | 2013-08-22 | Polytec Design:Kk | Pressure sensitive conductive elastomer molding and variable resistance device using the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6123643B2 (en) | 1986-06-06 |
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